Combo drain



FIG. 1 is a perspective view of a combo drain, showing my design;

FIG. 2 is a top view;

FIG. 3 is a left side elevation view;

FIG. 4 is right side elevation view;

FIG. 5 is a front elevation view; and

FIG. 6 is a rear elevation view; and,

FIG. 7 is a bottom view.

The broken line showing is included for the purpose of illustrating portions of the article and forms no part of the claimed design. 

The ornamental design for a combo drain, as shown and described. 